JP2006153376A - Treatment method and treatment equipment of treated object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a treatment method of a treated object capable of implementing continuous treatment as a whole through a process for drying the treated object under reduced pressure, is included. <P>SOLUTION: The treated object D1 supplied through a supply passage 11 is dried under reduced pressure and discharged through a discharge passage 12. Here, the treated objects D1, D2 are continuously supplied and continuously discharged to thicken and material seal the supply passage 11 and the discharge passage 12 by the compressed treated objects D1, D2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a processing method and processing equipment for an object to be processed. More specifically, the present invention relates to a case where an object to be processed is dried under reduced pressure.

  As a method for drying the object to be treated such as sewage sludge, there is vacuum drying in which the object to be treated is heated and dried under a pressure lower than the atmospheric pressure such as vacuum. The drying under reduced pressure is excellent in drying efficiency, and for example, drying at a heating temperature lower than normal (under atmospheric pressure) becomes possible.

  On the other hand, in order to process an object to be processed in a larger amount with a smaller facility, it is generally considered that continuous processing is better than batch processing. However, in vacuum drying, since the pressure must be kept constant in a state lower than the atmospheric pressure, a continuous processing method and equipment have not been developed at present. Various processing methods and equipment for drying a workpiece under reduced pressure have been proposed, but many of them are said to be batch-type for reduced-pressure drying and continuous for reduced-pressure drying. The supply and discharge of the object to be processed are batch-type, and the whole process of supply, vacuum drying and discharge is batch-type (for example, refer to Patent Document 1 and Patent Document 2).

In this regard, the object to be treated such as sewage sludge is generally incinerated in an incinerator after drying. And the to-be-processed object after drying supplies quantitatively continuously to an incinerator etc., in order to stabilize this incineration disposal. However, in a conventional method / apparatus in which the discharge treatment after drying under reduced pressure is a batch type, continuous supply to such an incinerator or the like cannot be performed. Therefore, the current situation is that temporary storage in a hopper or the like and continuous supply from this storage facility to an incinerator or the like is made, and an increase in the size of the facility and an increase in maintenance costs are inevitable.
JP 2003-126801 A Japanese Patent Laid-Open No. 11-270967

  SUMMARY OF THE INVENTION The main problem to be solved by the present invention is to provide a processing method and processing equipment for an object to be processed in which the entire process is a continuous process in spite of including a step of drying the object to be processed under reduced pressure. is there.

The present invention that has solved this problem is as follows.
[Invention of Claim 1]
A processing method for a processing object, wherein the processing object supplied through a supply path is dried under reduced pressure and discharged through a discharge path,
A processing method for an object to be processed, characterized in that the object to be processed is continuously supplied and discharged so that the supply path and the discharge path are densely sealed with a compressed object to be processed and material-sealed. .

[Invention of Claim 2]
A processing facility for processing objects, comprising a dryer for drying the processing object under reduced pressure, a supply means for supplying the processing object to the dryer, and a discharging means for discharging the processing object of the dryer. There,
As the supply means, a supply path for the object to be processed, and a transfer device for densely transferring the object to be processed in the supply path to the dryer,
As the discharge means, the discharge path of the object to be processed and the delivery device attached to the front end of the discharge path that closes the inside of the discharge path with the object to be processed and discharges the object to be processed while holding the material seal. And
The processing equipment for processing objects, wherein the dryer is provided with a conveying means for continuously conveying the objects to be processed from the supply path side to the discharge path side.

[Invention of Claim 3]
The transport means includes a shaft member that rotates about the transport direction as an axis, and a transport blade provided around the shaft member,
The processing equipment of the to-be-processed object of Claim 2 with which a heat medium distribute | circulates the inner space part of the said shaft material and the said conveyance blade.

[Invention of Claim 4]
The processing equipment of the to-be-processed object of Claim 3 provided with the baffle which surrounds the discharge channel side edge part of a conveyance blade | wing.

[Invention of Claim 5]
The transport means includes an even number of shaft members that rotate around the transport direction, and transport blades provided around each shaft member,
The process of the to-be-processed object of any one of Claims 2-4 comprised so that the to-be-processed object adhering to the other conveyance blade may be destroyed by the rotational motion of at least any one conveyance blade. Facility.

[Invention of Claim 6]
An even number of shafts are provided in parallel,
A supply path is provided so that a workpiece is supplied between shafts adjacent to each other,
The said adjacent shaft material is a processing facility of the to-be-processed object of any one of Claims 3-5 rotated in a mutually reverse direction.

[Invention of Claim 7]
The processing facility for the object to be processed according to claim 6, wherein the supply path has an extending portion that extends from the inner wall surface of the dryer to the shaft material.

[Invention of Claim 8]
An even number of shafts are provided in parallel,
The processing facility of the to-be-processed object of any one of Claims 5-7 provided with the discharge path so that to-be-processed material may be discharged | emitted from the bottom face which faces between mutually adjacent shaft materials.

[Invention of Claim 9]
An exhaust port is provided on the top surface of the dryer.
The discharge path opens at the bottom of the dryer,
The baffle extends from the discharge channel side inner wall surface of the dryer to the supply channel side edge position of the discharge channel opening, to the supply channel side edge position of the exhaust port, or to a position between these both end edges. The processing equipment of the to-be-processed object of any one of Claims 4-9.

[Invention of Claim 10]
As a discharge means, a discharge path for the object to be processed, a pressure gauge for measuring the pressure in the discharge path, and a tip of the discharge path for continuously sending the object to be processed so that the measured value by the pressure gauge becomes a predetermined value The processing equipment for the object to be processed according to any one of claims 2 to 9, further comprising: a delivery device attached to the device.

[Invention of Claim 11]
The supplied material to be treated is sewage sludge having a moisture content of 78 to 83% by mass, and the sewage sludge is dried so as to have a moisture content of 68 to 73% by mass. The processing equipment of the to-be-processed object as described in a term.

  According to the present invention, the entire process is a continuous process regardless of including a step of drying the object to be processed under reduced pressure.

Next, an embodiment of the present invention will be described.
[Use]
An object to be processed that can be processed in this embodiment is not particularly limited. For example, sludge such as sewage sludge, waste sludge, oil mud, and other paste-like substances having a high water content can be treated. Below, the case where a to-be-processed object is a sewage sludge is demonstrated to an example.

[Treatment method and system]
FIG. 1 shows a processing system of this embodiment.
In the present processing system, the sewage sludge D1 in the hopper 1 is continuously cut out by the cutting machine 2 provided at the bottom of the hopper 1. A screw that is rotationally driven by a motor M that is a drive source is provided in the inner space of the cutting machine 2. By this screw, the sewage sludge D1 is conveyed in the right direction on the paper surface, and is consolidated in this conveyance process.

  The consolidated sewage sludge D1 is sent to the uniaxial eccentric screw pump 3 as a transfer device through the outlet chute 2A. The uniaxial eccentric screw pump 3 is driven by a motor M as a drive source. In the uniaxial eccentric screw pump 3, the sewage sludge D1 is kept in a consolidated state. As the transfer device, for example, a positive displacement pump such as a piston pump can be used in addition to the uniaxial eccentric screw pump. However, the uniaxial eccentric screw pump is preferable from the viewpoint that the sewage sludge D1 can be expected to be gas-impermeable due to the sewage sludge D1 by supplying a fixed amount of the sewage sludge D1.

  The consolidated sewage sludge D1 is sent toward the dryer 10 through the supply pipe 31 by the uniaxial eccentric screw pump 3. In the middle of the supply pipe 31, a flow rate indicating controller (FIC [flow indicating controller]) F 1 is provided. The flow rate indicating controller F1 is connected to the motor M of the uniaxial eccentric screw pump 3 by a signal line 41, and the flow rate value measured by the flow rate indicating controller F1 is constant or a value set in advance. Thus, the motor M of the uniaxial eccentric screw pump 3 is controlled.

  The distal end of the supply pipe 31 is connected to the supply nozzle 11 serving as a supply path that constitutes the supply means together with the uniaxial eccentric screw pump 3. Therefore, since the sewage sludge D1 is transported in the supply nozzle 11 and the supply pipe 31 in a consolidated state, the supply nozzle 11 and the supply pipe 31 are substantially impermeable to gas. Here, the fact that any one part from the uniaxial eccentric screw pump 3 to the supply nozzle 11 becomes substantially gas-impermeable is called a material seal.

  An automatic valve XV1 is interposed between the supply pipe 31 and the supply nozzle 11. The automatic valve XV1 is closed during maintenance of the dryer 10, for example, but is open during processing. The type of the automatic valve XV1 is not particularly limited. For example, a known type such as an electric type or an air operated type can be exemplified.

  The sewage sludge D1 continuously supplied from the supply nozzle 11 to the inner space of the dryer 10 is dried under reduced pressure in the dryer 10. This continuous supply and drying under reduced pressure can be achieved because the material seal is formed in the supply nozzle 11 by the consolidated sewage sludge D1. The dried sludge D2 dried under reduced pressure is continuously discharged through the discharge nozzle 12 serving as a discharge path (a drying method and equipment in the dryer 10 will be described later).

  A uniaxial eccentric screw pump 4 serving as a delivery device is attached to the tip of the discharge nozzle 12. The uniaxial eccentric screw pump 4 is driven by a motor M as a drive source. On the other hand, the discharge nozzle 12 has a pressure indicating controller (PIC) P2 which measures the pressure in the discharge nozzle 12 and constitutes a discharge means together with the discharge nozzle 12 and the uniaxial eccentric screw pump 4. Is provided. This pressure indicating controller P2 is connected to the motor M of the uniaxial eccentric screw pump 4 by a signal line 43, and the motor M is controlled so that the pressure value measured by the pressure indicating controller P2 becomes a predetermined value. . The control of the motor M, that is, the control of the speed at which the dried sludge D2 is sent from the uniaxial eccentric screw pump 4 is performed so that the dried sludge D2 is compacted in the discharge nozzle 12 and becomes substantially impermeable to gas. This blockage makes it possible to achieve both reduced-pressure drying and continuous discharge of the sewage sludge D2. Note that the predetermined value can be set by calculating backward from the blockage.

  As the delivery device, for example, a positive displacement pump such as a piston pump can be used in addition to the uniaxial eccentric screw pump. However, from the viewpoint of not only forming a material seal in the discharge nozzle 12 but also expecting gas impermeability due to the dried sludge D2 in the delivery device, the uniaxial eccentric screw pump is preferable.

  The dried sludge D2 sent from the uniaxial eccentric screw pump 4 is sent to an appropriate place such as an incinerator through the discharge pipe 33. An automatic valve XV2 is interposed between the discharge pipe 33 and the uniaxial eccentric screw pump 4. The automatic valve XV2 is closed, for example, during maintenance of the dryer 10, but is open during processing. The type of the automatic valve XV2 is not particularly limited. For example, a known type such as an electric type or an air operated type can be exemplified.

[Drying method and equipment]
Next, the drying method and equipment by the dryer 10 will be described.
The dryer 10 of this form was shown to FIGS.
As shown in FIG. 2, this dryer 10 is provided with a supply nozzle 11 for supplying sewage sludge D1 to one end top surface 10A. The sewage sludge D1 supplied from the supply nozzle 11 to the dryer is continuously conveyed from the supply path side to the other end side (discharge path side) by the conveying means 21. The transporting means 21 includes an even number of shafts that are arranged in parallel to rotate about the transport direction, and in this embodiment, as shown in FIGS. 3 to 5, two shafts 13 </ b> A and 13 </ b> B, Screw type blades (hereinafter also simply referred to as screw blades) 14 and 14 which are conveying blades provided around the shaft members 13A and 13B.

  As shown in FIG. 3, one of the shaft members 13A is rotated by a motor M as a driving source through sprockets 18C and 18D that are rotated together by a chain 18E. The other 13B of the main shaft is rotated by the sprocket 18A provided on the first 13A of the main shaft rotating, and the sprocket 18B provided on the main shaft 13B meshing with the sprocket 18A being interlocked (rotated). It is done.

  Both ends of the shaft members 13A and 13B are supported by support members 19, 19. Further, the support members 19, 19... Are fixed on the base 20.

  When the shaft blades 13A and 13B rotate to rotate the screw blades 14A and 14B, the sewage sludge D1 is continuously conveyed from the supply path side to the discharge path side, and is dried in this process.

  For this drying, as shown in FIG. 1 and FIG. 8, the present dryer 10 allows a heating medium H1 such as hot water to pass through the pipes 34 and 34A and the shaft member 13 (13A, 13B) and the screw blade 14 ( 14A and 14B). The heat medium H1 after passing through the inner space of the shaft member 13 (13A, 13B) and the screw blade 14 (14A, 14B) is discharged through the exhaust pipes 35 and 36 as return water H2. When the equipment of this embodiment is used together with heat utilization equipment such as sewage sludge incineration equipment, a heat source such as waste water discharged from this sewage sludge incineration equipment can be used as the heat medium H1, and heat energy Effective use can be expected.

  In the present dryer 10, the conveying blade can be replaced with, for example, a paddle blade instead of the screw blade. However, from the viewpoint of passing the heat medium H1 through the inner space of the conveying blade as described above, a screw-type blade having a wide heat transfer area is preferable.

  The way of passing the heat medium H1 in the inner space of the shaft member 13 (13A, 13B) and the screw blade 14 (14A, 14B) is not particularly limited. However, as shown in FIG. 8, the shaft member 13 is a double tube of the outer tube 13out and the inner tube 13in, and the heat medium H1 from the pipe line 34A is fed into the screw blade 14 from a plurality of locations through the inner tube 13in. (In FIG. 8, reference numerals 14a to 14e indicate positions in the screw blades 14).

  For example, if the heat medium H1 is sent to the position 14a of the screw blade 14 and the heat medium H1 sent to the position 14a flows to the end, the position 14b, 14c, 14d, 14e,. Since the temperature of the medium H1 gradually decreases, the sewage sludge D1 may not be sufficiently dried on the discharge path side. On the other hand, the heat medium H1 is sent to a plurality of locations, for example, as shown in the example in the positions 14a and 14e of the screw blades 14, for example, the heat medium H1 sent to the 14a position is from the position 14b to the position 14b. It flows to the 14d position and does not flow to the 14e position (in order to block the flow to the 14e position, for example, a partition plate may be provided between both positions). From the 14d position, the outer tube 13out and the inner tube 13in If it is made to pass back through, the uniform drying effect can be obtained from the supply path side to the entire discharge path side.

  Further, from the viewpoint of improving the drying efficiency, the present dryer 10 allows the heat medium H1 to pass through the jacket 17 provided at the bottom of the dryer 10 through the pipes 34 and 34B as shown in FIG. ing. The heat medium H1 after passing through the jacket 17 is discharged as return water H2 through the discharge pipe 36 from the discharge path side bottom surface 10B of the jacket 17.

  In the present dryer 10, temperature indicators (TI [Temperature Indicator]) T1, T2, or T3 are provided on the pipe 34, the exhaust pipe 36, and the top surface 10A of the dryer 10, respectively. Based on the temperature values measured by these thermometers T1 to T3, it is possible to control the flow rate of the heat medium H1 and thereby control the strength of drying.

  The steam S generated from the sewage sludge D1 by the main drying is exhausted from the exhaust port 16 provided in the top surface 10A of the predetermined position of the dryer 10, and is exhausted to the atmosphere through the exhaust pipe 32, for example. However, since this drying is reduced-pressure drying, a steam stop valve V1 is provided in the middle of the exhaust pipe 32. This steam stop valve V <b> 1 is connected to a pressure indicating controller P <b> 1 provided on the top surface 10 </ b> A of the dryer 10 by a signal line 42. When the pressure value in the dryer 10 measured by the pressure indicating controller P1 rises above the design value, the steam stop valve V1 is closed.

  The position (predetermined position) where the steam exhaust port 16 is provided is not particularly limited. However, since the airflow is generated in the transport direction by transport of the sewage sludge D1, it is preferable to use the discharge path side. Note that the decompression in the dryer can be realized, for example, by connecting a decompression device such as a suction pump or an ejector (not shown) to the dryer and operating the decompression device.

  The dried sludge D2 dried under reduced pressure is discharged from the discharge nozzle 12. The discharge nozzle 12 is opened on the bottom surface 10B opposite to the supply nozzle 11 of the dryer.

  The dryer 10 is provided with two shafts 13 (see FIG. 4), an even number such as two (see FIG. 6), four (see FIG. 6), six (see FIG. 7), and two in the illustrated example, 13A and 13B. However, it may be an odd number such as 1, 3, 5, etc. However, it is preferable that the shaft member 13 is an even number, and the sewage sludge D1 attached to the other screw blades 14 is destroyed by the rotational movement of at least one screw blade 14. This is because even an object to be treated having the property of being easily attached, such as sewage sludge D1, can be stably and continuously conveyed.

  The structure which breaks the above deposit | attachment is not specifically limited. For example, a configuration is conceivable in which a material extending to the outer periphery of the screw blade 14 is attached to the screw blade 14 so that the material passes through the vicinity of the other screw blade 14 as the shaft material 13 rotates.

  However, in this embodiment, as shown in FIGS. 3 to 5, one screw blade 14 </ b> A and 14 </ b> B is configured to enter between the pitches of the other screw blade 14 </ b> B or 14 </ b> A, respectively. Thereby, a deposit can be destroyed stably and reliably. Of course, the screw blades 14A and 14B are not in contact with each other, for example, by adjusting the pitch, the rotational speed, or the like. Regarding this configuration, for example, JP-A-57-156913 and JP-A-62-157113 can be referred to. In addition, the rotational speed ratio of the shaft members 13A and 13B (screw blades 14A and 14B) can be adjusted by changing the number of teeth of the sprockets 18A and 18B.

  When the shaft members 13 are an even number, it is considered normal to increase the shaft members 13, 13,... In the horizontal direction as shown in FIGS. However, the present invention is not limited to this. For example, an even number of shaft members 13, 13... May be arranged at each vertex of a triangle, each vertex of a quadrangle, etc. in a cross-sectional view.

  When the shaft members 13 are an even number, as shown in FIG. 4, the adjacent shaft members 13A and 13B are rotated in opposite directions, and the sewage sludge D1 is adjacent to each other. , 13B is preferably supplied. This is because the sewage sludge D1 is uniformly conveyed and dried. In order to ensure supply between the shaft members 13A and 13B, the supply nozzle 11 may have an extending portion 11A that extends from the inner wall surface of the dryer 10 to the shaft members 13A and 13B. .

  Similarly, when the shaft members 13 are an even number, as shown in FIG. 5, the adjacent shaft members 13A and 13B are rotated in opposite directions to each other and between the adjacent shaft members 13A and 13B. It is preferable that the opening of the discharge nozzle 12 is located on the bottom surface 10B that faces. This is for reliably discharging the dried sludge D2.

  In order to further ensure the discharge, the dryer 10 is provided with a baffle 15 made of a steel plate or the like surrounding the discharge path side ends of the screw blades 14A and 14B. The direction in which the dried sludge D2 moves upward requires less force than being pushed into the discharge nozzle 12, and the dried sludge D2 does not move to the discharge nozzle 12. Further, when sending the dried sludge D2 from the discharge nozzle 12 to the next extraction mechanism, it is necessary to extrude (push in) it with a certain pressure to assist the suction of the extraction mechanism. Therefore, the baffle 15 is required as a mechanism for directing the upward escaping force to the discharge nozzle 12 as much as possible.

  However, if the baffle 15 is made too long, it will cause the drying of the sewage sludge D1. Accordingly, as shown in FIG. 2, the baffle 15 covers the discharge path side inner wall surface 10C of the dryer from the supply path side edge position L of the discharge path opening (12) (that is, covers the discharge path opening (12)). It is preferable to extend to the supply path side edge position K of the exhaust port 16 or to the position N between the both end edges L and K. Further, at least a length of about 1.5 to 2 times the diameter of the discharge nozzle 12 is required.

  The baffle 15 needs to have a structure that covers the screw blades 14A and 14B. The clearance between the baffle 15 and the screw blades 14A and 14B is preferably as small as possible. This is because when the clearance is large, the sewage sludge D1 flows backward from the gap. Therefore, if the baffle 15 is made of, for example, a simple plate material (flat plate), the backflow of the sewage sludge D1 increases, which is not preferable. On the contrary, the shape (fan shape) along the screw blades 14A and 14B is most preferable. In this shape (fan shape), it is preferable to cover the upper side (1/2 of the blade diameter) of the screw blades 14A and 14B.

  The baffle 15 preferably has a shape with a large clearance at the upstream side (supply path side) end (a shape spreading in a trumpet shape). This is because the sewage sludge D1 is surely sent into the baffle 15.

  On the other hand, it is preferable that the discharge nozzle 12 is installed at the end portion (end portion on the discharge path side) of the screw blades 14A and 14B or on the upstream side thereof. Further, it is preferable that at least 50% or more of the cross-sectional area of the discharge nozzle 12 is installed at a position where the screw blades 14A and 14B are engaged (opposed).

  The size of the discharge nozzle 12 is basically determined by the discharge amount of the dried sludge D2, but it is preferable that the minimum diameter is about 40 mm even in a small-scale facility. If possible, 100 mm or more is recommended.

  The shape of the discharge nozzle 12 can be cylindrical or rectangular. However, it is preferable to match the shape on the extraction mechanism side. Further, the discharge nozzle 12 can have a shape like a straight pipe or a curved shape like an elbow. However, in the case of a curved shape, the pressure loss generated by friction with the inner surface of the nozzle during conveyance of the dried sludge D2 is large, so the diameter (cross-sectional area) must be larger than the diameter in the case of a straight line. .

[Others]
(1) The method and system of this embodiment dries sludge such as sewage sludge (generally having a water content of 78 to 83% by mass) to a water content of 68 to 73% by mass that allows incineration without auxiliary fuel. It is preferable to use it when doing so. When this condition is satisfied, material sealing is performed with consolidated sewage sludge, so that the supply channel and the discharge channel are reliably sealed and the decompression is reliably maintained, so that less heat energy is given to the sewage sludge. . Specifically, for example, it is possible to dry to a moisture content of 68 to 73% by mass only with waste heat energy discharged from the incineration facility.

  On the other hand, when the sewage sludge is dried to a moisture content of 60% by mass or less, the material seal in the discharge path may not be perfect. Therefore, it is preferable to dry so that the moisture content of the dried sludge is 60% by mass or more.

(2) As shown in FIGS. 1 and 2, in the above-described dryer 10, the steam exhaust port 16 is provided above the baffle 15. However, as shown in FIG. 9, the partition plate 15A is extended so as to extend upward from the supply path side edge of the baffle 15, for example, to the top surface 10A of the dryer 10 as shown in the example of the drawing. The provided steam exhaust port 16 ′ can also be provided at the center position in the transport direction. According to this embodiment, there is no possibility that the sludges D1 and D2 are clogged on the baffle 15. However, this effect can also be obtained by, for example, the form cut out and shown in FIG. 9 (portion surrounded by a dashed-dotted circular frame). In this embodiment, the discharge nozzle 12 is provided at a position protruding from the discharge path side inner wall surface 10 </ b> C of the dryer 10, and the conveying means 21 extends to this protruding portion. The upper surface 12A of the protruding portion functions as the baffle 15.

  The present invention is applicable as an apparatus for continuously supplying, processing, drying, and discharging a processing object such as sewage sludge.

It is a flowchart of this system. It is a longitudinal cross-sectional schematic diagram of this dryer. It is a cross-sectional schematic diagram of this dryer. It is the II arrow directional view of FIG. It is the II-II arrow directional view of FIG. It is a modification of this dryer. It is a modification of this dryer. It is a figure for demonstrating the flow path of a heat medium. It is a longitudinal cross-sectional schematic diagram of the dryer of another form.

Explanation of symbols

  3, 4 ... Uniaxial eccentric screw pump, 10 ... Dryer, 11 ... Supply nozzle, 12 ... Discharge nozzle, 13 ... Shaft material, 14 ... Screw blade, 15 ... Baffle, 16 ... Steam exhaust port, D1 ... Sewage sludge, D2 ... Dry sludge.

Claims (11)

A processing method for a processing object, wherein the processing object supplied through a supply path is dried under reduced pressure and discharged through a discharge path,
A processing method for an object to be processed, characterized in that the object to be processed is continuously supplied and discharged so that the supply path and the discharge path are densely sealed with a compressed object to be processed and material-sealed. . A processing facility for processing objects, comprising a dryer for drying the processing object under reduced pressure, a supply means for supplying the processing object to the dryer, and a discharging means for discharging the processing object of the dryer. There,
As the supply means, a supply path for the object to be processed, and a transfer device for densely transferring the object to be processed in the supply path to the dryer,
As the discharge means, the discharge path of the object to be processed and the delivery device attached to the front end of the discharge path that closes the inside of the discharge path with the object to be processed and discharges the object to be processed while holding the material seal. And
The processing equipment for processing objects, wherein the dryer is provided with a conveying means for continuously conveying the objects to be processed from the supply path side to the discharge path side. The transport means includes a shaft member that rotates about the transport direction as an axis, and a transport blade provided around the shaft member,
The processing equipment of the to-be-processed object of Claim 2 with which a heat medium distribute | circulates the inner space part of the said shaft material and the said conveyance blade.   The processing equipment of the to-be-processed object of Claim 3 provided with the baffle which surrounds the discharge channel side edge part of a conveyance blade | wing. The transport means includes an even number of shaft members that rotate around the transport direction, and transport blades provided around each shaft member,
The process of the to-be-processed object of any one of Claims 2-4 comprised so that the to-be-processed object adhering to the other conveyance blade may be destroyed by the rotational motion of at least any one conveyance blade. Facility. An even number of shafts are provided in parallel,
A supply path is provided so that a workpiece is supplied between shafts adjacent to each other,
The said adjacent shaft material is a processing facility of the to-be-processed object of any one of Claims 3-5 rotated in a mutually reverse direction.   The processing facility for the object to be processed according to claim 6, wherein the supply path has an extending portion that extends from the inner wall surface of the dryer to the shaft material. An even number of shafts are provided in parallel,
The processing facility of the to-be-processed object of any one of Claims 5-7 provided with the discharge path so that to-be-processed material may be discharged | emitted from the bottom face which faces between mutually adjacent shaft materials. An exhaust port is provided on the top surface of the dryer.
The discharge path opens at the bottom of the dryer,
The baffle extends from the discharge channel side inner wall surface of the dryer to the supply channel side edge position of the discharge channel opening, to the supply channel side edge position of the exhaust port, or to a position between these both end edges. The processing equipment of the to-be-processed object of any one of Claims 4-9.   As a discharge means, a discharge path for the object to be processed, a pressure gauge for measuring the pressure in the discharge path, and a tip of the discharge path for continuously sending the object to be processed so that the measured value by the pressure gauge becomes a predetermined value The processing equipment of the to-be-processed object of any one of Claims 2-9 provided with the delivery apparatus attached to.   The supplied material to be treated is sewage sludge having a moisture content of 78 to 83% by mass, and the sewage sludge is dried so as to have a moisture content of 68 to 73% by mass. The processing equipment of the to-be-processed object of clause.

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